Same for me. I can't remember how I stumbled upon her work, but since I saw her stuff about 5 years ago now, she quickly became my favorite porn star (japanese or otherwise) of all time.
She's obviously gorgeous, but what I really like about her is that she has this cute look about her that she can instantly turn into a smouldering sexiness on a dime. Plus, she's a grown ass woman, and has grown ass woman sex appeal.